From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail172.messagelabs.com (mail172.messagelabs.com [216.82.254.3]) by kanga.kvack.org (Postfix) with SMTP id 3A3966B004D for ; Thu, 22 Oct 2009 11:46:52 -0400 (EDT) Subject: Re: [PATCH 0/5] Candidate fix for increased number of GFP_ATOMIC failures V2 From: reinette chatre In-Reply-To: <1256221356-26049-1-git-send-email-mel@csn.ul.ie> References: <1256221356-26049-1-git-send-email-mel@csn.ul.ie> Content-Type: text/plain Date: Thu, 22 Oct 2009 08:43:38 -0700 Message-Id: <1256226219.21134.1493.camel@rc-desk> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: Mel Gorman Cc: Frans Pop , Jiri Kosina , Sven Geggus , Karol Lewandowski , Tobias Oetiker , "Rafael J. Wysocki" , David Miller , Kalle Valo , David Rientjes , KOSAKI Motohiro , "Abbas, Mohamed" , Jens Axboe , "John W. Linville" , Pekka Enberg , Bartlomiej Zolnierkiewicz , Greg Kroah-Hartman , Stephan von Krawczynski , Kernel Testers List , "netdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org\"" List-ID: On Thu, 2009-10-22 at 07:22 -0700, Mel Gorman wrote: > [Bug #14141] order 2 page allocation failures in iwlagn > Commit 4752c93c30441f98f7ed723001b1a5e3e5619829 introduced GFP_ATOMIC > allocations within the wireless driver. This has caused large numbers > of failure reports to occur as reported by Frans Pop. Fixing this > requires changes to the driver if it wants to use GFP_ATOMIC which > is in the hands of Mohamed Abbas and Reinette Chatre. However, > it is very likely that it has being compounded by core mm changes > that this series is aimed at. Driver has been changed to allocate paged skb for its receive buffers. This reduces amount of memory needed from order-2 to order-1. This work is significant and will thus be in 2.6.33. Reinette -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org